4-(Difluoromethoxy)nitrobenzene CAS 1544-86-1
| CAS No. | 1544-86-1 |
| Molecular Formula | C7H5F2NO3 |
| Molecular Weight | 189.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H5F2NO3, 4-(Difluoromethoxy)nitrobenzene contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
4-(Difluoromethoxy)nitrobenzene (CAS 1544-86-1), molecular formula C7H5F2NO3 and molecular weight 189.12 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(Difluoromethoxy)nitrobenzene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H5F2NO3 |
| Molecular Weight | 189.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoromethoxy Standards
- 5-(Difluoromethoxy)picolinic acid (CAS 1174323-34-2)
- 3-(Difluoromethoxy)isonicotinic acid (CAS 1211526-06-5)
- 6-(Difluoromethoxy)nicotinic Acid (CAS 1211535-62-4)
- 3-(Difluoromethoxy)pyridine-2-carboxylic acid (CAS 1211541-12-6)
- 2-(Difluoromethoxy)isonicotinic Acid (CAS 1211581-51-9)
- 2-(Difluoromethoxy)nicotinic Acid (CAS 1211587-59-5)
- 5-(Difluoromethoxy)pyridine-3-carboxylic acid (CAS 1256826-25-1)
- 6-(Difluoromethoxy)picolinic acid (CAS 1522367-81-2)
Recommended Standards
- 4-(Difluoromethoxy)picolinic acid (CAS 1707365-38-5)
- 2-(2-Aminopyrimidin-5-yl)-2,2-difluoroacetic acid (CAS 1443738-64-4)
- 4-(Difluoromethoxy)nicotinic acid (CAS 1774897-08-3)
- 1,3-Difluoro-2-methoxy-4-nitrobenzene (CAS 1393179-73-1)
- Methyl 1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)cyclopentane-1-carboxylate (CAS 1423704-72-6)
- tert-Butyl 5-bromo-1H-benzo[d][1,2,3]triazole-1-carboxylate (CAS 552331-93-8)
- 1-[2-(3,4-dimethoxyphenyl)ethyl]-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile 133181-42-7 2H-909 (CAS 133181-42-7)
- (2-Methyl-[1,1'-biphenyl]-4-yl)methanol (CAS 1539309-42-6)
- Dl-arginine hydrochloride monohydrate (CAS 332360-01-7)
- 7-Hydroxy-2,3,4,5-tetrahydro-1h-1-benzazepin-2-one (CAS 22245-90-5)
- 1-(4-Ethoxyphenyl)-N-(4-fluorophenyl)methanimine (CAS 62907-32-8)
- 1-(3-Ethyl-3h-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)azetidine-3-carboxylic acid (CAS 1333960-82-9)
- 2(1H)-Pyridinone,3-Bromo-4-Hydroxy- (CAS 96245-97-5)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
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